JOINT FILING AGREEMENT

Exhibit 99.2

JOINT FILING AGREEMENT

Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder (including any amendment, restatement, supplement and/or exhibit thereto) with the Securities and Exchange Commission (and, if such security is registered on a national securities exchange, also with the exchange), and further agrees to the filing, furnishing, and/or incorporation by reference of this agreement as an exhibit thereto. This agreement shall remain in full force and effect until revoked by any party hereto in a signed writing provided to each other party hereto, and then only with respect to such revoking party.

IN WITNESS WHEREOF, each party hereto, being duly authorized, has caused this agreement to be executed and effective as of the date first written above.

Dated: December 17, 2010

	INVESTMENT CORPORATION OF DUBAI
	By:	/s/ Khalifa Al Daboos
	Name:	Khalifa Al Daboos
	Title:	Director
	BORSE DUBAI LIMITED
	By:	/s/ Essa Kazim
	Name:	Essa Kazim
	Title:	Chairman
	By:	/s/ Xxxxxx Xxxxx
	Name:	Xxxxxx Xxxxx
	Title:	Director
	BORSE DUBAI NASDAQ SHARE TRUST
	By:	Borse Dubai Limited, authorized signatory
	By:	/s/ Essa Kazim
	Name:	Essa Kazim
	Title:	Chairman
	By:	/s/ Xxxxxx Xxxxx
	Name:	Xxxxxx Xxxxx
	Title:	Director